Willa Holland: It's about the origins of Oliver Queen, a.k.a. the Green Arrow — how it all came to be, as well as how his family gets integrated into the Arrow mix.

17: What's your character like?

WH: She's kind of a rambunctious teenager. When her brother passed away, she didn't know how to fill the gap, so she put herself into her brother's party animal shoes. Now that her brother is back, she thought he'd be extremely excited to see her and what she's done, but he's changed a lot in those five years and he's not too enthusiastic about the partying anymore. So it's just this resentment, like, "Wait, you've been gone for five years! You can't judge me!" It's teenage angst, something all 17-year-olds go through.

WH: I like that she's very layered. She plays herself very tough and with a very hard exterior, but deep down, she's a very, very broken girl inside. It's nice to have someone who's not exactly all pieced together.

17: Stephen looks smokin' hot in all the promo photos for the show! What's he like in real life?

17: Does the cast of the show hang out a lot even when you're not filming?

WH: We've become super close in the last three months! Any time we're all in town or anyone is anywhere near each other, we get together. We don't go a week without seeing each other—we can't handle it!

Arrow premieres October 10, 2012 on the CW. How excited are you to check out this new superhero series? Watch the trailer below!